- Remove SEM option by making it always avalible

Since FreeBSD 8.x EOL in 2015-08-01 the option doesn't have any value beyond
footshooting[1]. sem_open() and sem_init(pshared=1) always work FreeBSD 9.0
or later after base r201546.

[1] https://lists.freebsd.org/pipermail/freebsd-ports/2017-April/108116.html

PR:		218641
Reported by:	jbeich
Exp-run:        antoine
MFH:		2017Q2
Differential Revision:	https://reviews.freebsd.org/D10446

lang/python27/files/patch-setup.py

@@ -5,8 +5,8 @@
 
 # Description: ossaudiodev detection fix backport
 
---- setup.py.orig	2014-06-30 04:05:48.000000000 +0200
-+++ setup.py	2014-07-26 14:51:29.000000000 +0200
+--- setup.py.orig	2017-04-22 03:42:03 UTC
++++ setup.py
 @@ -15,6 +15,7 @@ from distutils.core import Extension, se
  from distutils.command.build_ext import build_ext
  from distutils.command.install import install
@@ -24,7 +24,7 @@
  
  def add_dir_to_list(dirlist, dir):
      """Add the directory 'dir' to the list 'dirlist' (at the front) if
-@@ -1214,7 +1215,7 @@ class PyBuildExt(build_ext):
+@@ -1234,7 +1235,7 @@ class PyBuildExt(build_ext):
                  sysroot = macosx_sdk_root()
                  f = os.path.join(sysroot, f[1:])
  
@@ -33,16 +33,7 @@
              data = open(f).read()
              m = re.search(r"#s*define\s+HASHVERSION\s+2\s*", data)
              if m is not None:
-@@ -1553,7 +1554,7 @@ class PyBuildExt(build_ext):
-             macros = dict()
-             libraries = []
- 
--        elif host_platform in ('freebsd4', 'freebsd5', 'freebsd6', 'freebsd7', 'freebsd8'):
-+        elif host_platform in ('freebsd4', 'freebsd5', 'freebsd6', 'freebsd7', 'freebsd8', 'freebsd9', 'freebsd10', 'freebsd11'):
-             # FreeBSD's P1003.1b semaphore support is very experimental
-             # and has many known problems. (as of June 2008)
-             macros = dict()
-@@ -1604,9 +1605,10 @@ class PyBuildExt(build_ext):
+@@ -1624,9 +1625,10 @@ class PyBuildExt(build_ext):
          else:
              missing.append('linuxaudiodev')
  
@@ -56,7 +47,7 @@
              exts.append( Extension('ossaudiodev', ['ossaudiodev.c']) )
          else:
              missing.append('ossaudiodev')
-@@ -2178,6 +2180,22 @@ class PyBuildInstallLib(install_lib):
+@@ -2200,6 +2202,22 @@ class PyBuildInstallLib(install_lib):
      def is_chmod_supported(self):
          return hasattr(os, 'chmod')
  
@@ -79,7 +70,7 @@
  SUMMARY = """
  Python is an interpreted, interactive, object-oriented programming
  language. It is often compared to Tcl, Perl, Scheme or Java.
-@@ -2223,7 +2241,9 @@ def main():
+@@ -2245,7 +2263,9 @@ def main():
            platforms = ["Many"],
  
            # Build info
@@ -90,7 +81,7 @@
                        'install_lib':PyBuildInstallLib},
            # The struct module is defined here, because build_ext won't be
            # called unless there's at least one extension module defined.
-@@ -2231,8 +2251,7 @@ def main():
+@@ -2253,8 +2273,7 @@ def main():
  
            # Scripts to install
            scripts = ['Tools/scripts/pydoc', 'Tools/scripts/idle',